Hi: Any news on the Hookup Guide?

"Note: We are currently working on a Hookup Guide for this kit. Check back later for more updates."

Also, is this accessible from the Linux side?

Cheers, Matt

As I stated earlier, my pressure sensor works (Flexiforce) but my bend sensor (FS7548) doesn't. But I also get small values for the Flexiforce (0 - 19). I always get 0 for the FS7548. I thought this board contains pull up resistors to 3.3v. I also assume we can put multiple analog sensors on the board and switch between them at runtime. Any clues from anyone about why I'm getting this?

@HumbertoGarza,

Thank you for posting. Very good reference. On my side, I referred to Adafruit's handling of ADS1015 and it worked on my development.

Thanks again.

Hi, I have the Muscle Sensor v3 and want to connect this to the Intel Edison to read sensor data without the Arduino. Will I be able to do so with this board you think? The sensor is equipped with GND and a SIG, how would you connect it? And can I use python or do I have to use C/C++? Thank you!

So there was someone from the community that wrote a C++ library and a tutorial or the Intel Edison Block ADC:

"Here is a link to the c++ library I made for this ADC humberto- garza/SparkFunEdisonADC · GitHub. Also the document will be soon in the Intel Community Platform, hope it’s helpful! Intel Community SparkFun Block for Intel® Edison - ADC"

Thanks to Humberto for posting an example. Just in case it isn't clear to everyone, this block uses the I2C-1 bus on the Edison and not the I2C-6 bus.

Hi,

Has anyone have some breakthrough on using this ADC block? Any advise would be greatly appreciated.

Cheers, Danny

Will the Edison Eclipse IDE recognize this board so it can be used with the MRAA library and Intel provided examples?

Any news on the hookup guide, I would love a simple example of how to read a voltage.

Hi is the ADC input range between 0V and the acceptable power input for the edison 3.3 to 4.5 V?

Sweet, I'd really love to have some ADC on the edison without needing the huge Arduino dev board.

I don't suppose you could post a preliminary schematic of this, as I need to build something similar to this ADC but can't wait 'till December..

We just released a pretty polished node.js lib for the ADC that we build for one of our intern's projects on github. The code is based on @HumbertoGarza's python lib, you can find it here

Does this get a default I2C address if you don't solder any pins?

You can now read the ADC Using the MCU Quark! Go to This Github!!!

As it turn out, the problem of implementing a simple bend sensor appears more difficult with this block. I need a pull up resistor and I don't have a 3.3v source with any of the blocks that I have. So it appears that, to use this block, I need to buy another block with a 3.3v source and build a custom block with the pull up logic. So I need: 1) this block 2) another block with 3.3v source 3) build a custom block with pull up resistors to use a simple bend sensor. There has to be a better way to build a wearable device. This board needs to be implemented so users can place resistors for their pull up sensors for all analog imputs. If no resistor is used, the line isn't pulled up. There are so many sensors out their that need pulling up. I'm obviously frustrated.

OK, I figured out the problem. I can't simply connect the to bend sensor leads to this board. I need to add my own pull-up resistors (should have known). Dave

Heres my code for Ubilinux using mraa to read an analog sensor from AIN2 (so others can benefit):

#include "mraa.h"
#include <signal.h>

int running = 0;

void sig_handler(int signo)
{
if (signo == SIGINT) {
    running = -1;
}
}

int main(int argc, char** argv)
{
int a2_oper_status = 0b0 << 7;
int a2_input_mux = 0b110 << 4; // AIN2-GND
int a2_gain_amplifier = 0b010 << 1;
int a2_mode = 0b0 << 0;
int a2_data_rate = 0b100 << 13;
int a2_comp_mode = 0b0 << 12;
int a2_comp_polarity = 0b0 << 11;
int a2_comp_latching = 0b0 << 10;
int a2_comp_queue = 0b11 << 8;
uint16_t a2_word = a2_oper_status +
          a2_input_mux +
          a2_gain_amplifier +
          a2_mode +
          a2_data_rate +
          a2_comp_mode +
          a2_comp_polarity +
          a2_comp_latching +
          a2_comp_queue;
printf("a2_command 0x%X\n",a2_word);

mraa_i2c_context i2c = mraa_i2c_init(1);
if (mraa_i2c_address(i2c, 0x48) != MRAA_SUCCESS)
    printf("can't find i2c sensor\n");
signal(SIGINT, sig_handler);
while (running == 0) {
    if (mraa_i2c_write_word_data(i2c, a2_word, 0x01) != MRAA_SUCCESS)
   printf("can't write a2 command\n");
    uint8_t a2_sensor_value = mraa_i2c_read_byte_data(i2c, 0);
    printf("%d\n",a2_sensor_value);
    sleep(1);
}
    printf("Closing I2C\n");
mraa_i2c_stop(i2c);
}

I have this block working without a breakout board using mraa with ubilinux. However, it works when I plug in a pressure sensor on AIN2 but not when I plug in a bend sensor. Both sensors use to work with arduino breakout. Any reason why this would work with Sparkfun's pressure sensors but not Sparkfun bend sensors? Do I need pull up resistors?

Also, this board has been selling for 1/2 a year and there still isn't a tutorial on it. A lot of people are spending a lot of time trying to figure this out.

I’m gradually collecting a library of simple python code for using these blocks in conjunction with the MRAA library. Just requires linux running on the Edison and the MRAA library installed.

Might be helpful to someone who is as confused as I was(am):

https://github.com/Einse57/SSTM-Edison-Python

The ADC is still in progress but I have tied out single ended reads and configuration writes using MRAA based on Adafruit's I2C libs.

Hey Everyone! Here is a link to the c++, Python and Arduino library I made for this ADC, let me know if it was helpful or if you need more help, just follow the Readme! GitHub Library

Also the document will be soon in the Intel Community Platform, hope it's helpful! Intel Community

Hello everyone, It took me a while to figure out how to get to use this ADC. I will leave an example of how to read it via .cpp.

You need to read this data sheet in order to configure the ADC (http://www.ti.com/lit/ds/symlink/ads1015.pdf page 15) as you please.

In this example you can test the AIN0 getting ±2.048V as the maximum... you have to know that the configuration bits are in disorder; so send the less significant byte as the most significant (in this case it should be 0x4483, instead send it as 0x8344)

int main(int argc, char *argv[])
{
    //Configure the I2C configuration register, 
    //As default the address 0x48 should be soldered in your device
    system("i2cset -y 1 0x48 1 0x8344 w"); 

    //This is the command to read the data register
char const* command = "i2cget -y 1 0x48 0 w"; 

while(1)
{
    char buffer[10];
    string result = "";

            //Open the command to read the data register
    FILE* fpipe = popen(command, "r");
    if (not fpipe) 
    {
         std::cout << "Command failed to execute\n";
    }
    else
    {
                    //The result will be in disorder, it has a resolution of 3
                    //nybbles and this is the right order.

        std::fgets(buffer, sizeof buffer, fpipe); 
        result += buffer[0];
        result += buffer[1];
        result += buffer[3];
        result += buffer[4];
        result += buffer[5];
        result += buffer[2];
        std::cout <<result<<endl;
    }
    pclose(fpipe);
            return 0;
}

When I stack this ADC Module with the intel edison. This ADC will be powered with 3.3 V. I would like to know, what is the Maximum analog voltage that its analog input channels can measure during this time, is it 0 to 3.3 V or will it also measure 0-5 V if I provide analog voltage input upto 5 V?